SMA NR-PL-DCEMV5-01 Manual page 22

7 Replacing the DST Assembly
Procedure:
1. Check whether the printed circuit board centering
bolts are present and securely in place at the
respective positions in the inverter. If PCB centering
bolts are missing, remove and reinsert the PCB
centering bolts from the defective assembly.
2. Clean the supporting surfaces in the enclosure. To do so, use the cleaning cloths included in
the delivery. Cleaning can be made easier using Isopropanol.
3. Carefully remove the assembly upwards out of the packaging. When doing so, only hold the
assembly by the handling areas and ensure that the pattern of thermal grease is not damaged
or soiled.
4. Align the assembly and insert it into the inverter. Put the assembly onto the PCB centering pins.
Ensure that the PCB centering pins match the holes in the assembly.
22 STP50-DC-EMV-DST-RM-xx-10
SMA Solar Technology AG
Replacement Manual